21922340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{397}}^1$

素因数の和:668

約数の個数: 48

約数和(自身を含む): 50549184

約数和(自身を除く): 28626844

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 251, 397, 502, 794, 1004, 1255, 1588, 1985, 2510, 2761, 3970, 4367, 5020, 5522, 7940, 8734, 11044, 13805, 17468, 21835, 27610, 43670, 55220, 87340, 99647, 199294, 398588, 498235, 996470, 1096117, 1992940, 2192234, 4384468, 5480585, 10961170, 21922340]

約数ペア:

[(1, 21922340), (2, 10961170), (4, 5480585), (5, 4384468), (10, 2192234), (11, 1992940), (20, 1096117), (22, 996470), (44, 498235), (55, 398588), (110, 199294), (220, 99647), (251, 87340), (397, 55220), (502, 43670), (794, 27610), (1004, 21835), (1255, 17468), (1588, 13805), (1985, 11044), (2510, 8734), (2761, 7940), (3970, 5522), (4367, 5020)]